JPH0446473Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an airtight structure formed between the door body of a swinging door and the door stop frame.

<Conventional technology> For example, the airtight structure of a conventional swing door is
As shown in the figure, an airtight packing material 6 is fitted into a groove 53 provided in the door frame and is brought into pressure contact with the face plate 11 of the door body 1 when the door is closed.

<Problems to be solved by the invention> However, in the case of such an airtight structure of a swinging door, since the door body 1 rotates around the hinge 2, the corner where the face plate 11 and the hinge side end surface 12 intersect E bites into the airtight packing material 6. Due to this biting, the elastic repulsive force of the airtight packing material 6 is applied to the door body 1.
The lock latch 4 acts in the opening direction, causing the lock latch 4 to fall down due to an operational error, and a gap 7 is created between the airtight packing material 6 on the lock latch 4 side and the face plate 11. There was a problem in that the airtightness between the door body 1 and the door stop frame 5 was impaired due to this void 7.

<Means for Solving the Problems> The present invention provides an airtight packing material having two types: a press-fitting packing part 31 having a substantially U-shaped cross section, and a contact packing part 32 having a flocked shape. 3,
It is arranged in the groove 53 of the door stop frame 5. Then, in the vertical frame on the lock latch side, the press sealing part 31 of the airtight sealing material 3 is brought into pressure contact with the face plate 11 of the door body 1, and the contact seal part 32 is pressed against the end face 13 of the door body 1.
At the same time, on the hinge side vertical frame, the abutment packing part 32 of the airtight packing material 3 is brought into contact with the end surface 12 of the door body 1, and the pressure contact packing part 31
is brought into pressure contact with the face plate 11 of the door body 1.

<Function> With the above-described configuration, each gasket part of the airtight gasket material 3 comes into contact and pressure contact with the door body 1 independently, so that even if a contact/pressure failure occurs in one gasket part, the other gasket part will not contact or press the other gasket part. Airtightness is maintained in the packing part.

<Example> The airtight structure of the present invention will be described below with reference to FIGS. 1 and 2.

Components that are the same as those described in the conventional example will be described with the same numbers.

FIG. 2 is a schematic front view showing the door body 1 having an airtight structure according to the present invention. That is, the door body 1 rotates around the hinge 2 within the door stop frame 5 to open and close.

The door body 1 has a predetermined thickness for the arrangement of the lock latch 4 and the beam, and has end faces 12 and 13 formed on its sides. The end surfaces 12 and 13 intersect with the face plate 11 and have corners E and E, respectively.

On the other hand, the door stop frame 5 connects the door body 1 to the side wall 51 and the front wall 5.
A groove 53 into which the airtight packing material 3 is inserted runs in the vertical direction of the side wall 51 on the lock latch side vertical frame, and in the vertical direction of the front wall 52 on the hinge side vertical frame. provided in each direction.

The airtight packing material 3 is provided at a fitting part 34 into the groove 53 of the door stop frame 5, a pressure-welding packing part 31 extending from the end of the fitting part 34 and having a substantially U-shaped cross section, and the fitting part 34. It consists of a flocked abutment packing part 32 which is attached to the groove part 33 and is arranged in parallel in the same direction as the pressure contact packing part 31. The airtight packing material 3 is
Since it is fitted into the groove 53 of the door stop frame 5 and corresponds to the installation direction of the groove 53, the lock latch side vertical frame and the hinge side vertical frame are disposed in a substantially orthogonal state.

On the lock latch side vertical frame, a pressure sealing part 31 is in pressure contact with the face plate 11 of the door body 1, and on the hinge side vertical frame, the pressure sealing part 31 is in pressure contact with the end face 12 of the door body 1. Then, the approximately U-shaped portion of the pressure-welding packing portion 31 is compressed and becomes flat.
The elastic repulsion force of the press-contact packing portion 31 acts on the door body 1 in the door opening direction.

On the other hand, the contact packing part 32 is formed in a flocked shape.
is the end surface 13 of the door body 1 at the vertical frame on the lock latch side.
Similarly, the vertical frame on the hinge side also contacts the face plate 11 of the door body 1.

In addition, the structure of the upper frame and lower frame of the door stop frame 5,
The structure is the same as that of the lock latch side vertical frame.

<Effect of the invention> According to the invention, the airtight packing material and the abutting material,
It has a two-type structure for pressure welding, and each packing part has a structure that performs an airtight function independently, so even if a faulty pressure contact occurs, airtightness is maintained by the other abutting packing part. Since the contact gasket is removable, it has practical effects such as easy maintenance such as replacement.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the airtight structure according to the present invention, with the door body closed to the door frame, and Figure 2 is a cross-sectional view of the airtight structure according to the present invention.
FIG. 3, a schematic front view of the door body, is a cross-sectional view showing a conventional airtight structure. In the figure, 1 is a door body, 2 is a hinge, 3 is an airtight packing, 31 is a pressure fitting part, 32 is an abutting packing part, 4 is a lock, and 5 is a door stop frame.

Claims (1)

[Scope of utility model registration claim] Rotates via a hinge provided on one side of the door body,
The door is closed via a lock latch provided on the side opposite to the hinge side in the opening formed by the side wall and front wall of the door stop frame. A state in which a hinged door is provided with an airtight packing material having a section, and in the vertical frame on the lock latch side, the press-contact packing part, which is formed in a substantially U-shaped cross section in the vertical direction of the side wall, is in pressure contact with the face plate of the door body. A large, flocked contact patch is arranged in contact with the end face of the door body, and the vertical frame on the hinge side has a flocked contact patch formed in the vertical direction of the front wall. An airtight structure for a swinging door, characterized in that a contacting seal part is in contact with a face plate of a door body, and a press-fitting seal part having a substantially U-shaped cross section is arranged in a state in which it is in pressure contact with an end face of the door body.